The Steward Alerts for Science System (SASSy) provides access to various alerts and cross-correlation with catalogs. We provide support for queries to alerts and database(s) sourced from the Galaxy List for the Advanced Detector Era (GLADE), the Gravitational Wave Galaxy Catalog (GWGC), (ad-hoc) alerts from the Laser Interferometer Gravitational-Wave Observatory (LIGO), the Transient Name Server (TNS) and the Zwicky Transient Facility (ZTF). Further information is available in the (help) and (api) sections.

These pages are adapted from the code from LCOGT (Las Cumbres Observatory Global Telescope) which delivers the MARS (Make Alerts Really Simple) website.

Details for GWGC (Q3C) record

Item Value
ID 4
Name NGC4136
RA (J2000°) 12.15492
Dec (J2000°) 29.9277
B Magnitude (apparent) 11.7
δB Magnitude (apparent) ± 0.3
B Magnitude (absolute) -19.57
δB Magnitude (absolute) ± 0.31
Distance (Mpc) 17.95
δDistance (Mpc) ± 2.69
Position Angle (°) nan
Hyperleda (PGC) Code 38618
Morphological (TT) Code 5.2
Major Axis (′) 2.814
δMajor Axis (′) ± 0.906
Minor Axis (′) 2.617
δMinor Axis (′) ± 0.897
Axis Ratio 0.93
δAxis Ratio ± 0.109